Bank of Butterfield shares ended the day up 0.81 percent to close at $1.24 on the Bermuda Stock Exchange yesterday with 598,755 shares trading.Bermuda Aviation Services shares also traded to close up 2.85 percent (10 cents) at $3.50. 6,000 shares changed hands.Overall, the BSX was up 0.48 percent or 5.17 to close at 1,076.44.